Is the Hyundai Sonata reliable?
73% of the 45 we inspected scored 60/100 or higher, with an average of 67/100 — it scores noticeably better than the typical used car we inspect.
45
Cars inspectedreal pre-purchase inspections67/100
Average conditionall cars we check: 61/10073%
In good shape (60+)all cars we check: 56%Across 45 used Hyundai Sonatas we inspected, this model scores noticeably better than the typical used car we inspect — average condition 67/100 vs 61 for all cars we check. Every number on this page comes from real pre-purchase inspections — cars people were about to buy and paid an independent inspector to go through point by point, engine to underbody, paint depth to error codes. Not owner surveys, not warranty statistics, not forum lore: what we actually found.
What we found
Most common faults
Oil leaks · Engine
62%
Tires condition & wear · Brakes and tires
44%
Worn suspension joints · Suspension
24%
Fuel trim out of range · Engine
24%
Dirty or low engine oil · Engine
22%
Share of inspected Hyundai Sonatas where each item was flagged.
How they score
Excellent 24%
Good 49%
Mediocre 20%
Poor 7%
Hidden history
What the seller might not mention — how often we find it on this model.
76%had a repainted or replaced panelall cars: 75%
4%showed structural repairall cars: 4%
24%had fault codes recently clearedall cars: 24%
How long does a Sonata stay good?
Good cars by mileage
Good cars by age
Share of Hyundai Sonatas in good shape (scoring 60+/100) by mileage and by age when we inspected them (each dot ≥5 cars; rolled-back odometers excluded from the mileage curve). The dashed grey curve is all cars we check.
More on Hyundai
Other Hyundai models we've inspected — or see the full Hyundai profile.
Straight from recent Hyundai Sonata reports
2010 Hyundai Sonata · 120k mi — flagged: smoothness, crankcase gas pressure, oil leaks. Inspected Sep 26.
2022 Hyundai Sonata · 101k mi — flagged: oil leaks, fault codes recently cleared, fuel trim out of range. Inspected Sep 11.
The bottom line
Treat the engine as the deal-breaker. Oil leaks hit 62 percent of these Sonatas and often travel with dirty or low oil and fuel-trim issues, so get under the car, check the dipstick, and scan before you talk price. Tires and worn suspension joints are the next things to poke—use them to negotiate, not to walk. Body history looks ordinary, so a fresh paint job is not a red flag by itself. Buy the dry, well-oiled example; if the leak is active or oil has been ignored, walk or knock the repair off the asking price.
FAQ
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What are the most common problems on a used Hyundai Sonata?
The items we flag most often are oil leaks (62%), tires condition & wear (44%), worn suspension joints (24%). Have these checked before buying.
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Should I worry about cleared fault codes?
On 24% of these cars the ECU codes had been erased shortly before sale, which can hide active faults. Ask for a diagnostic scan and start the engine from cold.
Thinking of buying a Hyundai Sonata? Get the exact car inspected before you pay.
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Based on 45 inspections · updated Oct 2, 2026
